- Different Neurotropic Pathogens Elicit Neurotoxic CCR9- or Neurosupportive CXCR3-Expressing Microglia. Li, H., Gang, Z., Yuling, H., Luokun, X., Jie, X., Hao, L., Li, W., Chunsong, H., Junyan, L., Mingshen, J., Youxin, J., Feili, G., Boquan, J., Jinquan, T. J. Immunol. (2006)